Mud scraper



Dec. 22, 1931 L B H 1,837,946

MUD S CRAPEH Filed July 16, 1950 2 SheetsSheet 1 ATTORNEY Dec. 22, 1931. I J BOSCH 1,837,946

MUD S CRAP ER Filed July 16, 1930 2 Sheets-Sheet 2 17 17 g1 mm ATTORNEY Patented Dec. 22, 1931 JOSEPH L. BOSCH, or nnvrns LAKE, NORTH DAKOTA MUD scnnrnn Application filed July 16, 1930'. Serial N"... 488,359;

This invention relates to scrapers for re- Clamping nuts 14: are mounted upon the u moving mud and the like from the wheels of per ends of the rods 1.2 and provide means for vehicles, and is especially designed for use securely clamping the bar to the body. upon tractors. In addition the invention provides braces 5 An object of the invention is the provision 15. The ends of these braces are mounted of means for removably attaching the scrapupon'the rods 12 beneath the bar 10, and ers in position, the said means including a their outer ends are provided with openings scraper bar and means for detachably se- 16 for the passage of suitable bolts, by means curing the bar to the body or frame of the of whichthe-braces may be attached tothe LJ vehicle, together with means to brace the bar body of the tractor. These braces will act to so that the latter will be rigidly held in poreinforce the bar 10 and resist any tendency sition. of the bar to pivot upon the body or to move Another object of the invention is the prolongitudinally thereof. vision of means for detachably securing scrap- The outer ends of the bar are provided with er blades to the bar, whereby the latter may be spaced grooves l7which are designed to re- '65 accurately adjusted to the diameter of the ceive the inner ends 18 of scraper blades 19. wheels, and laterally adjusted for use with These blades are of angular formation as different types of wheels and different wheel shown in F iguresfi and 7 of the drawings, and gages. their inner ends 18 are adapted to be remov- With the above and other objects in view, ably and adjustably seated in the grooves 17 7 the invention further includes the following so as to engage the walls of the grooves and novel features and details of construction, prevent lateral movement. The bar 10 is proto be hereinafter more fully described, illusvided with openings 20 adjacent the grooves trated in the accompanying drawings and 17 for the passage of substantially L-shaped l3 pointed out in the appended claim. clamping bolts 21. The shanks of these bolts 7 In the drawings extend through the openings 20 and their an- Figure 1 is a side elevation of a tractor gular ends 22 extend transversely across the with the invention applied. inner ends 18 of the scraper blades, while Figure 2 is a top plan view of the same. nuts 23 mounted upon the bolts 21, bear Figure 3 is a front elevation of the invenagainst the under face of the bar 10 and serve tion per se. to clamp the angular ends 22 upon the scraper Figure 1 is a side view of the same. blades. The blades are thus positively held Figure 5 is an enlarged fragmentary secin position. ticnal view on the line 55 of Figure 2. The outer ends of the scraper blades are 35 Figure 6 is a detail perspective view of one beveled as at 24 and are arranged in close of the scraper blades. relation, or in contacting engagement with Figure 7 is a similar view of a slightly difthe periphery of the wheels 25 of the tractor. ferent form of blade. As shown, the tractor is provided with spaced Referring to the drawings in detail wherein rows of cleats or traction elements, and the like characters of reference denote correblades 19 are positioned between the rows to spending parts, the reference character 10 inremove mud and other material which addicates the scraper bar which is designed to heres to the treads of the wheels. be disposed transversely of a vehicle body or As shown in Figure 2 of the drawings, the frame, in the present case, the body 11 of a blades 19 are arranged centrally of the wheel 45 tractor. treads and for this purpose are clamped with- .95

The bar 10 is provided with spaced openin the innermost grooves 17 of the scraper bar. ings for the passage of rods 12, and these rods However, the scraper blades may be clamped pass through openings provided in a clampin the outermost grooves 17 so as to be used ing bar 13, which is designed to be arranged withdifferent types of wheels, or with wheels 50 transversely of thetop of the tractor body 11. of different gages. If desired, a pair of scrapers may be arranged at each end of'the bar 10 for use with wheels having a wide tread. o

By reason of the manner of securing the scraper blades to the bar 10, the blades may be accurately adjusted with respect to the diameter of the wheels. I

In Figure 7 the scraper blade 19a is provided with an arrow-shaped head 26 for use with wheels having relatively wide treads. This particular type of head will provide a shearing action in the removal of mud fro the wheels.

The invention is susceptible of various changes in its form, proportions and minor details of construction and the right isoherein reserved to make such changes as properly fall within the scope of the appended claim.

Having described the invention what is claimed is z I The combination with a traction machine havingtraction wheels, of a bar disposed transversely of the machine and supported thereon in close proximity to said wheels, said bar having a series of countersunk seats at spaced intervals apart, scraper members for the wheels and selectively engaged in certain of the seats, and bolt members engaged in the bar next to the seats and having angle heads overlying said scraper members when engaged in the seats to retain the same removably secure upon the bar.

In testimony whereof I afiix my signature.

JOSEPH L. BOSCH. 

